Coupling for steel-aluminum ropes



C. SPANNAUS COUPLING FOR STEEL ALUMNUM ROPES July 28,

y med Aug; e, 1922 MIA "fiff if1,547,972

ofr'ro sPaNN-"Aus, ori-eoLOGNEMUL-Hnim,'GEMMYQ AssIGNon'-.ro'fFELTEN- AND GUILLEAUME'QABLSWEBK Ac'rInNeEsELLscHAl-rr, or coLoGNEfMULHEIM, onn- To iz-ZZ may concern:

` i Steel-'Aluminum Ropesf,o-which'the following is a full,

"reference being had 'therein tothe accord lll' * windlpressure Panying drawing'.- j This inventionl relatesto-a couplmg for s steel aluminum cables that is,'.for-cablesgofg ,two concentric layers of different metals, the outer layer "consisting of aluminum. lhe-v coupling mustvbeke'pt as'shortas posslbleso as to-'bit'fer- 'onlyra small surface to the' I andlin order to save costs'and i i `c0116 b,'so that, by the tension exerted inthe cable, inthe event -of the wires givinggthefA entire'v arrangement is automatically-tightcned again@ andthe -wires'alwaysV remain weight.

. Gonical couplings'are known in connection with ordinary stranded wire ropes, but

it never has been proposed -to employ couplings for cables offtwo concentric layers "of one another `vby the vtension exerted on the ress the `wlres7 againA firmly against' the wa` siofthe. cones good electric contact 1s always main.l

diEerent metals,f consisting of hollow concentric lcones within a` conical sleeve, all adapted-"to-grip separate layers off'wir'e of different metals between .the contiguoussurface andj'arranged concentrically one within the other, so as to be drawn into one another. by the tension exerted upon the cable.

The present invent'on consists mfthis that iny cables 'of the kind rst referred to the ends of the'core of steel wires-and oftheV surrounding wires 'of' aluminumA are firmly vpressed by special xhollowcones which 11e concentrically one*withi 1 1 the.oth er. .In the event .of the aluminum ,wires' giving, the a' [declare that .what I claim is,

cones are alwaysV automatically drawn into cable and thereby always Reference ing to the invention, and Figure 2is'a`sectionalzview of a termi nectorf. -V

steelcore are clamped by' afhollowicone e,

vagainst the inner surface ofthe 4'coneentriaj cally arranged intermediate'. hollow cone a. 'l ','I'hev aluminum vwires d are pressed by the 'hollow cone a; againstthe inner surface'of clear, and exact specification,

' the 'cone-alito' be drawn lfurther into'th'eis now. made-'tog the accompany i' ing drawings in lwhichI Pigure 1 1s 'a longitudinal sectional view cfa couplmg-.accord a detachable -set "arranged .concent'ricallyi and: between asleeve gis-an' in. termedia'tepiece, `w ich.l has thepurpose of providing an abutment and 'of avoiding the wires projecting too'far and becoming entangled with the `wiresfon the other side, Thepiece g is made of any suitable\metal:- and not being' es 'sent-ial1mayy be omitted;v 's f; AAccording -tov experience, aluminum fwires held in cones easily 'give'and are then-'liable to vbecome fusedb' Should this occur inthe 'coupling according to theinventiomthat is,i

. should'the outeraluminumfwires d`give,.the

tension exerted'on the steelwires f causes the wires f, together with'the cone e 'to .bej i I drawn further into thecne a. This 'causes pressed firmly a ainst the-walls 4of the cone ensuresfa :good -electrical contact, even- 1n case the steel wires should have to take over 80.

'cause,'as the current will thenpass .tothe Y. .other'sideby way. ofl a, b, 0..Th1s coupling if 'can also* loe-.used for detachably `connecting Y the end of the cable to an insulator, see Fi ssj. .ed sleeve c aithreadedbolt h having -al shank y the :conduction of the current through any ure^2 for instanceby screwing to Qthe threa --Havingnowfully described and asceri Y -j tained the nature lof Inyvinvention and in what mannerth'e same is to be performed 1. A cableA coupling forzsteel-aluminum centrically v'and' between which the steel "fthewires' against the-conicalwa Y 2. (AT1 cablefcoupling' forsteel-alumingm cablesjcom rising .'in4 coxnbiiration two sets 10Q of inner Yan intermediate cone members each which the steel wires ofthecable are held;

cablesfcomprising-in combination inner andv intermediate4 cone members-'arranged con- 95 "Winsen-held, an outer conical sleeve ar- -v grange'd concentrically overizsaid intermediate f jj conemember and-betweenwhich the alumi- 1 ,num lwires 'ar .held, sothatthetensionvex--A' upon the cable automatically ullsthe -^10G inner andintermediateconical mem ers into sleeves b are connected together by means of theconically bored sleeve b.' Two conical concentncallypneeach over saidnef 110 termediate cone 'members and between'which the aluminum wires are held andmegms for connectingjtogether the two conical sleeves.

3. A. cable coupling for Steel-aluminumeables .comprising xin combination two sets of inner and intermedmte cone members each 'set arranged concentrically and between which the steel wires of the cable are. held,

.Witnes'sem Lemaire termediate 'cone between which .A

the aluminum wires are-heldjand a. screwl threaded sleeve `for. connecting together theq In testimony .whereof I-hvefsigiied'my naine in the presence of two witnesses.

' OTT()- SBANNAUS,

ERNST PAL, -GEoRq MLLEn. 

